diff --git a/.gitmodules b/.gitmodules
index 36acc23..c49c5ae 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -40,3 +40,6 @@
 [submodule "components/i2c-bme680"]
 	path = components/i2c-bme680
 	url = https://github.com/badgeteam/esp32-component-bme680.git
+[submodule "tools"]
+	path = tools
+	url = https://github.com/badgeteam/mch2022-tools
diff --git a/tools b/tools
new file mode 160000
index 0000000..6c299f8
--- /dev/null
+++ b/tools
@@ -0,0 +1 @@
+Subproject commit 6c299f8c5462138ce09db9ba71848a2286fa75d3